# RSpec vs Selenium

**Leader by vioscaleAI score:** Selenium

| Attribute | RSpec | Selenium |
|---|---|---|
| **vioscaleAI score** | 55.6 (33% (low)) | 71.7 (76% (high)) |
| activity.commits_last_30d | 16 | 100 |
| adoption.dependent_repos | 398,836 | 98,124 |
| adoption.github_stars | 118 | 34,541 |
| adoption.package_downloads_weekly | - | 6,935,447 |
| content.faq | `[{"answer":"RSpec is a testing framework for Ruby that helps developers write and organize tests by describing expected behavior. It provides tools for writing readable specifications, asserting results, mocking objects, and testing Rails applications. It is indexed under Testing Tools.","source":"http://rspec.info","question":"What is RSpec?","confidence":0.6},{"answer":"RSpec is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.","source":"http://rspec.info","question":"Is RSpec free to use?","confidence":0.6},{"answer":"RSpec supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"http://rspec.info","question":"What platforms does RSpec support?","confidence":0.6},{"answer":"Yes. RSpec is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/rspec/rspec","question":"Is RSpec open source?","confidence":0.95}]` | `[{"answer":"Open-source tool that automates web browsers to enable automated testing of web applications, regression testing, and automation of repetitive web-based administrative tasks. Includes WebDriver for robust test automation, IDE for record-and-playback scripting, and Grid for distributed test execution. It is indexed under Testing Tools.","source":"https://www.selenium.dev","question":"What is Selenium?","confidence":0.6},{"answer":"Selenium is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://www.selenium.dev","question":"Is Selenium free to use?","confidence":0.6},{"answer":"Selenium supports Windows, macOS, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.selenium.dev","question":"What platforms does Selenium support?","confidence":0.6},{"answer":"Yes. Selenium can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.selenium.dev","question":"Can Selenium be self-hosted?","confidence":0.6},{"answer":"We have confirmed 4 integrations for Selenium, including Chrome, Firefox, Edge and Appium. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.selenium.dev","question":"What does Selenium integrate with?","confidence":0.6},{"answer":"Yes. Selenium is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/SeleniumHQ/selenium","question":"Is Selenium open source?","confidence":0.99}]` |
| deployment.options | - | `{"self_hosted":true}` |
| description.long | An open-source testing framework for Ruby providing a syntax for writing and running specifications with built-in support for assertions and test doubles. | Selenium is an open-source testing framework that automates web browsers for testing applications and automating web-based administration tasks across multiple programming languages. |
| features.capabilities | `{"mocking":true,"languages":"Ruby","assertions":true,"ci_integration":true}` | `{"protocol":"multi","languages":"Java, JavaScript, Python, Ruby, .NET","test_types":"e2e","open_source":true,"headless_mode":true,"ci_integration":true,"no_code_recorder":true,"browser_automation":true,"parallel_execution":true}` |
| integrations.count | - | 5 |
| integrations.list | - | `[{"name":"Chrome"},{"name":"Firefox"},{"name":"Edge"},{"name":"Appium"},{"name":"Chrome for Testing (CfT)"}]` |
| language.primary | Ruby | Java |
| license.spdx | MIT | Apache-2.0 |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true}` | `{"web":true}` |
| pricing | `{"type":"open_source","sourceUrl":"http://rspec.info","retrievedAt":"2026-10-13T13:50:24.742Z"}` | `{"type":"open_source","sourceUrl":"https://www.selenium.dev","retrievedAt":"2026-10-13T15:12:44.428Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | yes |
| release.cadence_days | - | 30 |
| release.history | - | `[{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/nightly","date":"2026-10-13T00:30:25Z","type":"prerelease","version":"nightly"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.51.0","date":"2026-10-09T19:18:18Z","type":"stable","version":"selenium-4.51.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.50.0","date":"2026-09-30T22:16:28Z","type":"stable","version":"selenium-4.50.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.49.0","date":"2026-09-09T15:35:47Z","type":"stable","version":"selenium-4.49.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.48.0","date":"2026-08-27T20:13:03Z","type":"stable","version":"selenium-4.48.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.47.0","date":"2026-08-10T18:00:07Z","type":"stable","version":"selenium-4.47.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.46.0","date":"2026-07-11T00:47:53Z","type":"stable","version":"selenium-4.46.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.45.0","date":"2026-06-16T13:59:48Z","type":"stable","version":"selenium-4.45.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.44.0","date":"2026-05-12T23:58:59Z","type":"stable","version":"selenium-4.44.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.43.0","date":"2026-04-10T06:52:53Z","type":"stable","version":"selenium-4.43.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.42.0","date":"2026-04-09T11:53:47Z","type":"stable","version":"selenium-4.42.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.41.0","date":"2026-02-20T15:57:35Z","type":"stable","version":"selenium-4.41.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.40.0","date":"2026-01-18T23:53:16Z","type":"stable","version":"selenium-4.40.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.39.0","date":"2025-12-06T22:53:26Z","type":"stable","version":"selenium-4.39.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.38.0","date":"2025-10-25T05:01:29Z","type":"stable","version":"selenium-4.38.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.37.0","date":"2025-10-18T05:02:55Z","type":"stable","version":"selenium-4.37.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.36.0","date":"2025-10-02T15:37:23Z","type":"stable","version":"selenium-4.36.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.35.0","date":"2025-08-12T15:44:30Z","type":"stable","version":"selenium-4.35.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.34.0","date":"2025-06-29T18:25:54Z","type":"stable","version":"selenium-4.34.0"},{"url":"https://github.com/SeleniumHQ/selenium/releases/tag/selenium-4.33.0","date":"2025-05-23T17:42:58Z","type":"stable","version":"selenium-4.33.0"}]` |
| reliability.status_page | yes | yes |
| security.scorecard | 7.5 | 2.9 |
| security.trust_center | - | https://www.selenium.dev/categories/security/ |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=rubygems&package_name=rspec-expectations&per_page=100","last_12m":0,"max_severity":null}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.seleniumhq.selenium%3Aselenium-java&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Testing Tools)

| Capability | RSpec | Selenium |
|---|:--:|:--:|
| **Core** |  |  |
| Test types | - | Unit + integration + E2E |
| Browser automation | - | ✓ |
| Built-in assertion library | ✓ | - |
| Languages | Ruby | Java, JavaScript, Python, Ruby, .NET |
| **Isolation** |  |  |
| Mocking / stubbing | ✓ | - |
| **Techniques** |  |  |
| Snapshot testing | - | - |
| **Performance** |  |  |
| Parallel execution | - | ✓ |
| **Insight** |  |  |
| Code coverage | - | - |
| **DX** |  |  |
| Watch mode | - | - |
| **Ops** |  |  |
| CI integration | ✓ | ✓ |

*Source: vioscaleAI. Generated 2026-10-16T19:14:21.386Z. "-" = undocumented, not absent.*